2004 CHEVROLET IMPALA ECU

Windshield Wiper Blade
Replacement
Windshield wiper blades should be inspected at least
twice a year for wear or cracking. See “Windshield
Wipers, Blade Check” underScheduled Maintenance on
page 6-4for more information.
Replacement blades come in different types and are
removed in different ways. For proper type and length,
seeNormal Maintenance Replacement Parts on
page 6-13. Here’s how to remove the wiper blades:
1. Turn on the wipers to the low wipe setting.
2. Turn off the ignition while the wipers are at the
outer positions of the wiper pattern. The blades
are more accessible for removal/replacement while
in this position.
3. Pull the windshield wiper arm away from the
windshield.4. While holding the wiper arm away from the glass,
push the release clip from under the blade
connecting point and pull the old blade assembly
down toward the glass to remove it from the
wiper arm.
5. Push the new wiper blade securely on the wiper
arm until you hear the release clip “click” into
place.
5-63

Used Replacement Wheels
{CAUTION:
Putting a used wheel on your vehicle is
dangerous. You can’t know how it’s been used
or how far it’s been driven. It could fail suddenly
and cause a crash. If you have to replace a
wheel, use a new GM original equipment wheel.
Tire Chains
{CAUTION:
If your vehicle has P235/55R17 size tires, don’t
use tire chains, there’s not enough clearance.
Tire chains used on a vehicle without the
proper amount of clearance can cause damage
to the brakes, suspension or other vehicle
parts. The area damaged by the tire chains
could cause you to lose control of your vehicle
and you or others may be injured in a crash.
CAUTION: (Continued)
CAUTION: (Continued)
Use another type of traction device only if its
manufacturer recommends it for use on your
vehicle and tire size combination and road
conditions. Follow that manufacturer’s
instructions. To help avoid damage to your
vehicle, drive slowly, readjust or remove the
device if it’s contacting your vehicle, and don’t
spin your wheels.
If you do nd traction devices that will t,
install them on the front tires.
Notice:If your vehicle has a tire size other than
P235/55R17 size tires, use tire chains only where
legal and only when you must. Use only SAE
Class″S″type chains that are the proper size for
your tires. Install them on the front tires and tighten
them as tightly as possible with the ends securely
fastened. Drive slowly and follow the chain
manufacturer’s instructions. If you can hear the
chains contacting your vehicle, stop and retighten
them. If the contact continues, slow down until
it stops. Driving too fast or spinning the wheels with
chains on will damage your vehicle.
5-80

Storing the Flat Tire and Tools
{CAUTION:
Storing a jack, a tire, or other equipment in the
passenger compartment of the vehicle could
cause injury. In a sudden stop or collision,
loose equipment could strike someone.
Store all these in the proper place.
After you’ve put the compact spare tire on your vehicle,
you’ll need to store the at tire in the trunk. Use the
following procedure to secure the at tire in the trunk.When storing a full-size tire, use the extension and
protector guide located in the foam holder to help
prevent wheel surface damage.
To store a full-size tire do the following:
1.
Place the tire in the trunk, valve stem facing down
with the protector/guide through a wheel bolt hole.
2.Remove the protector/guide and attach the retainer
securely. The cover will not t over a full-size tire, so
be sure to store the cover as far forward as possible.
3.When you put the compact spare tire back in the
trunk, place the protector/guide back in the foam
holder.
4. Put the cover back over the compact spare tire and
tighten the center nut.
5-91

Roadside Assistance Program
Security While You Travel
1-800-CHEV-USA (243-8872)
As the proud owner of a new Chevrolet vehicle, you are
automatically enrolled in the Chevrolet Roadside
Assistance program. This value-added service is
intended to provide you with peace of mind as you drive
in the city or travel the open road. Chevrolet’s Roadside
Assistance toll-free number is staffed by courteous
and capable Roadside Assistance Representatives who
are available 24 hours a day, 365 days a year.
We will provide the following services during the
Bumper-to-Bumper warranty period, at no expense
to you:
Fuel Delivery:Delivery of enough fuel
($5 maximum) for the customer to get to the
nearest service station.
Lock-out Service (identication required):
Replacement keys or locksmith service will
be covered at no charge if you are unable to gain
entry into your vehicle. Delivery of the replacement
key will be covered within 10 miles.
Emergency Tow:Tow to the nearest dealership
for warranty service or in the event of a
vehicle-disabling accident. Assistance when the
vehicle is mired in sand, mud or snow.
Flat Tire Change:Installation of a spare tire will be
covered at no charge. (The customer is responsible
for the repair or replacement of the tire if not
covered by a warrantable failure.)
Jump Start:No-start occurrences which require a
battery jump start will be covered at no charge.
Dealer Locator Service
In many instances, mechanical failures are covered
under Chevrolet’s Bumper-to-Bumper warranty.
However, when other services are utilized, our Roadside
Assistance Representatives will explain any payment
obligations you might incur.
7-6

For prompt and efficient assistance when calling, please
provide the following to the Roadside Assistance
Representative:
Your name, home address, and home telephone
number
Telephone number of your location
Location of the vehicle
Model, year, color, and license plate number
Mileage, Vehicle Identication Number and delivery
date of the vehicle
Description of the problem
While we hope you never have the occasion to use our
service, it is added security while traveling for you
and your family. Remember, we are only a phone
call away. Chevrolet Roadside Assistance:
1-800-CHEV-USA (1-800-234-8872), text
telephone (TTY) users, call 1-888-889-2438.
Chevrolet reserves the right to limit services or
reimbursement to an owner or driver when, in
Chevrolet’s judgement, the claims become excessive
in frequency or type of occurrence.
Roadside Assistance is not part of or included in the
coverage provided by the New Vehicle Limited Warranty.
Chevrolet reserves the right to make any changes or
discontinue the Roadside Assistance program at
any time without notication.
Canadian Roadside Assistance
Vehicles purchased in Canada have an extensive
roadside assistance program accessible from anywhere
in Canada or the United States. Please refer to the
Warranty and Owner Assistance Information book.
Courtesy Transportation
Chevrolet has always exemplied quality and value in
its offering of motor vehicles. To enhance your
ownership experience, we and our participating dealers
are proud to offer Courtesy Transportation, a customer
support program for new vehicles.
The Courtesy Transportation program is offered to retail
purchase/lease customers in conjunction with the
Bumper-to-Bumper coverage provided by the New
Vehicle Limited Warranty. Several transportation options
are available when warranty repairs are required.
This will reduce your inconvenience during warranty
repairs.
7-7

Cassette Tape Messages.........................3-67, 3-89
Cassette Tape Player Service............................. 6-9
CD Adapter Kits.....................................3-67, 3-89
CD Messages........................................3-78, 3-92
Center Console Storage Area...........................2-42
Center Front Passenger Position, Safety Belts....1-23
Chains, Tires..................................................5-80
Change Engine Oil Message............................3-47
Check
Engine Light...............................................3-37
Check Engine Light.........................................3-37
Checking Coolant............................................5-30
Checking Engine Oil........................................5-18
Checking Things Under the Hood......................5-10
Chemical Paint Spotting.................................5-100
Child Restraints
Child Restraint Systems...............................1-37
Infants and Young Children...........................1-33
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-44
Older Children.............................................1-31
Securing a Child Restraint Designed for the
LATCH System........................................1-46
Securing a Child Restraint in a Rear Seat
Position..................................................1-46
Securing a Child Restraint in the Right Front
Seat Position...........................................1-49Child Restraints (cont.)
Top Strap...................................................1-42
Top Strap Anchor Location............................1-43
Where to Put the Restraint...........................1-40
Chime Level Adjustment..................................3-97
CHIRP (Horn Chirp Timer)...............................2-51
Cigarette Lighter.............................................3-20
Cleaning
Inside of Your Vehicle..................................5-94
Outside of Your Vehicle................................5-97
Underbody Maintenance.............................5-100
Weatherstrips..............................................5-97
Cleaning Aluminum Wheels..............................5-99
Cleaning Exterior Lamps/Lenses.......................5-98
Cleaning Fabric/Carpet....................................5-94
Cleaning Glass Surfaces..................................5-96
Cleaning Interior Plastic Components.................5-96
Cleaning Leather............................................5-96
Cleaning the Top of the Instrument Panel...........5-96
Cleaning Tires................................................5-99
Cleaning Vinyl................................................5-96
Cleaning Windshield and Wiper Blades..............5-98
Climate Control System
Air Filter, Passenger Compartment.................3-25
Dual..........................................................3-20
Outlet Adjustment........................................3-24
3

I
If No Steam Is Coming From Your Engine..........5-34
If Steam Is Coming From Your Engine...............5-33
If the Light Is Flashing.....................................3-39
If the Light Is on Steady..................................3-39
If You Are Caught in a Blizzard.........................4-27
If You Are Stuck in Sand, Mud, Ice or Snow.......4-29
If You Do Decide To Pull A Trailer.....................4-38
Ignition Positions.............................................2-17
Illumination on Remote Activation........................ 2-6
Infants and Young Children, Restraints...............1-33
Ination - Tire Pressure...................................5-72
Instrument Panel
Cluster.......................................................3-27
Overview..................................................... 3-4
Instrument Panel Brightness.............................3-17
Interior Lamps................................................3-17
J
Jump Starting.................................................5-51
K
Keyless Entry System....................................... 2-3
Keys............................................................... 2-2
L
Lamps
Exterior......................................................3-14
Interior.......................................................3-17
Lap Belt........................................................1-23
Lap-Shoulder Belt...................................1-15, 1-24
LATCH System
Child Restraints...........................................1-44
Securing a Child Restraint Designed for the
LATCH System........................................1-46
Leaving Your Vehicle.......................................2-10
Leaving Your Vehicle With the Engine Running . . . 2-29
Light
Air Bag Readiness.......................................3-32
Anti-Lock Brake System Warning...................3-35
Brake System Warning.................................3-33
Cruise Control.............................................3-41
Malfunction Indicator....................................3-37
Safety Belt Reminder...................................3-31
TCS Warning Light......................................3-35
Traction Control System (TCS) Warning..........3-35
Loading Your Vehicle.......................................4-32
Lockout Protection..........................................2-10
Locks
Door........................................................... 2-8
Leaving Your Vehicle....................................2-10
8

Locks (cont.)
Lockout Protection.......................................2-10
Power Door.................................................. 2-9
Programmable Automatic Door Locks.............2-10
Loss of Control...............................................4-14
Low Brake Fluid Warning Message....................3-51
Low Engine Oil Level Message.........................3-47
Low Fuel Warning Message.............................3-50
Low Oil Pressure Message...............................3-46
Low Tire Message..........................................3-48
Low Washer Fluid Warning Message.................3-50
LT DELAY (Delayed Headlamp Illumination)........2-46
Lumbar
Manual Controls............................................ 1-3
M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-9
At Least Once a Month.................................. 6-9
At Least Once a Year..................................6-10
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-7
Maintenance Record....................................6-15
Maintenance Requirements............................. 6-2
Normal Maintenance Replacement Parts.........6-13Maintenance Schedule (cont.)
Owner Checks and Services........................... 6-9
Recommended Fluids and Lubricants.............6-12
Scheduled Maintenance................................. 6-4
Using Your................................................... 6-2
Your Vehicle and the Environment................... 6-2
Maintenance When Trailer Towing.....................4-43
Making Turns.................................................4-42
Malfunction Indicator Light................................3-37
Manual Lumbar Controls.................................... 1-3
Manual Operation...........................................3-21
Manual Seats................................................... 1-2
Matching Transmitter(s) to Your Vehicle............... 2-6
Message
Battery Warning..........................................3-45
Center.......................................................3-43
Change Engine Oil......................................3-47
Door Ajar Warning.......................................3-48
Highbeam Out Warning................................3-52
Hot Coolant Temperature Warning..................3-45
Low Brake Fluid Warning..............................3-51
Low Engine Oil Level...................................3-47
Low Fuel Warning.......................................3-50
Low Oil Pressure.........................................3-46
Low Tire .....................................................3-48
Low Washer Fluid Warning...........................3-50
Security.....................................................3-49
9